I have seen many finger exercises, but some have noted that fingers are conjoined with hands in muscularity and use, so can you really strengthen or isolate the fingers indirectly from the hand muscles, or must they work in conjunction always?
I know there are different types of grip, like pinch, crush, static endurance application, etc.
But regarding the fingers specifically, because I notice some people just have really tough fingers aside from strong hands, and although my hands aren't "weak" my fingers aren't actually strong, and are pretty frail.
So my question is, are the fingers conjoined 100% with the hands, or can they be worked on more directly through exercises without worrying about over working hand muscles interchangeably?
Thanks in advance.